Upgraded from 5.02 to 5.07, mod_proxy now misbehaving

As with many users running Zimbra, our installation is in an environment in which apache is installed and serving other applications. I have set zimbrahttp to 8080 and https to 8443 and have been using mod_proxy to terminate the ssl connection and passing the traffic on to zimbra. All did work well, after the upgrade to 5.07, the ssl login page is presented, but an http page is returned after login. I do not want any clear text communication, thus no http over the net. If I append a s the http: the client loads and all subsequent returned urls are not rewritten to http. Maybe I did something on the original zimbra install that I don't remember with zimbra the first time, but
TIA for any help, Bob

# Only include this section to enable access to
# the Zimbra administrative web interface
<Location "/zimbraAdmin">
# Modify to your setup, but do NOT skip these lines --
# you MUST configure access controls securely!
Order deny,allow
Allow from 127.0.0.1
Allow from all

# Replace this URL with the host/port that the
# Zimbra administrative web interface is using
ProxyPass https://my.domain.net:7071/zimbraAdmin
ProxyPassReverse https://my.domain.net:7071/zimbraAdmin
</Location>
<Location "/zimbra/h/changepass">
# Modify to your setup, but do NOT skip these lines --
# you MUST configure access controls securely!
Order deny,allow
Allow from 127.0.0.1
Allow from all